	var closeBtn = document.querySelector("#close");
	var openBtn = document.querySelector("#open");
	var oDiv = document.querySelector("#right");
	var oUl = document.querySelector("ul");

	closeBtn.onclick = function () {
	  oDiv.style.height = "0%";
	  oUl.style.opacity = 0;
	  this.style.display = "none";
	}

	openBtn.onclick = function () {
	  oDiv.style.height = "100%";
	  oUl.style.opacity = 1;
	  closeBtn.style.display = "block";
	}